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Science, New Series, Vol. 72, No. 1870, Oct. 31, 1930


Previous Issue: New Series, Vol. 72, No. 1869, Oct. 24, 1930
Next Issue: New Series, Vol. 72, No. 1871, Nov. 7, 1930


Front Matter (4 pp.)
Polar Exploration, pp. 439-449
Isaiah Bowman


Obituary
George Fouché Freeman: 1878-1930, pp. 449-450
Roger C. Smith
Recent Deaths, p. 450
Memorials, p. 450


Scientific Events
The Centenary of the Royal Geographical Society, pp. 450-451
The Languages of American Indians, p. 451
Recommendations of the Advisory Committee on Education by Radio, pp. 451-452
Appropriations for Grants-In-Aid by the National Research Council, p. 452


Scientific Notes and News, pp. 452-456


Discussion
Gibbs's Phenomenon, p. 456
Charles N. Moore
The Present Status of Lactenin, pp. 456-457
F. S. Jones; H. S. Simms
An Accessible Tropical Vegetation, p. 457
Walter N. Bangham
The Pronunciation of "Centimeter", p. 458
Evan Thomas
Discoverer of the Calculus, p. 458
Ronald Ross


Special Correspondence
Work in Parasitology at the University of Michigan Biological Station, pp. 458-459
W. W. Cort
Botanical Legacies of Walter Deane, p. 459
B. L. Robinson


Scientific Apparatus and Laboratory Methods
An Improved Soil Sampler, pp. 459-460
L. J. Pessin


Special Articles
Adrenal Cortex Extract and Cancer, pp. 460-461
Shigemitsu Itami; Ellice McDonald
The Life Cycle of the Parasite of East Coast Fever in Ticks Transmitting the Disease. (Preliminary Note), pp. 461-462
E. V. Cowdry; Arthur W. Ham


Books Received, p. 462
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 72, No. 1869, Oct. 24, 1930
Next Issue: New Series, Vol. 72, No. 1871, Nov. 7, 1930



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